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/*
* nvidia-xconfig: A tool for manipulating X config files,
* specifically for use by the NVIDIA Linux graphics driver.
*
* Copyright (C) 2005 NVIDIA Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses>.
*
*
* Util.c
*/
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include "xf86Parser.h"
#include "Configint.h"
void *xconfigAlloc(size_t size)
{
void *m = malloc(size);
if (!m) {
fprintf(stderr, "memory allocation failure (%s)! \n", strerror(errno));
exit(1);
}
memset((char *) m, 0, size);
return m;
} /* xconfigAlloc() */
/*
* xconfigStrdup() - wrapper for strdup() that checks the return
* value; if an error occurs, an error is printed to stderr and exit
* is called -- this function will only return on success.
*/
char *xconfigStrdup(const char *s)
{
char *m;
if (!s) return NULL;
m = strdup(s);
if (!m) {
fprintf(stderr, "memory allocation failure during strdup (%s)! \n",
strerror(errno));
exit(1);
}
return m;
} /* xconfigStrdup() */
/*
* xconfigStrcat() - allocate a new string, copying all given strings
* into it. taken from glib
*/
char *xconfigStrcat(const char *str, ...)
{
unsigned int l;
va_list args;
char *s;
char *concat;
l = 1 + strlen(str);
va_start(args, str);
s = va_arg(args, char *);
while (s) {
l += strlen(s);
s = va_arg(args, char *);
}
va_end(args);
concat = xconfigAlloc(l);
concat[0] = 0;
strcat(concat, str);
va_start(args, str);
s = va_arg(args, char *);
while (s) {
strcat(concat, s);
s = va_arg(args, char *);
}
va_end(args);
return concat;
} /* xconfigStrcat() */
#define NV_FMT_BUF_LEN 64
extern int configLineNo;
extern char *configSection;
extern char *configPath;
void xconfigErrorMsg(MsgType t, char *fmt, ...)
{
va_list ap;
int len, current_len = NV_FMT_BUF_LEN;
char *b, *pre = NULL, *msg;
char scratch[64];
b = xconfigAlloc(current_len);
while (1) {
va_start(ap, fmt);
len = vsnprintf(b, current_len, fmt, ap);
va_end(ap);
if ((len > -1) && (len < current_len)) {
break;
} else if (len > -1) {
current_len = len + 1;
} else {
current_len += NV_FMT_BUF_LEN;
}
free(b);
b = xconfigAlloc(current_len);
}
switch (t) {
case ParseErrorMsg:
sprintf(scratch, "%d", configLineNo);
pre = xconfigStrcat("Parse error on line ", scratch, " of section ",
configSection, " in file ", configPath, ".\n", NULL);
break;
case ParseWarningMsg:
sprintf(scratch, "%d", configLineNo);
pre = xconfigStrcat("Parse warning on line ", scratch, " of section ",
configSection, " in file ", configPath, ".\n", NULL);
break;
case ValidationErrorMsg:
pre = xconfigStrcat("Data incomplete in file ", configPath, ".\n", NULL);
break;
case InternalErrorMsg: break;
case WriteErrorMsg: break;
case WarnMsg: break;
case ErrorMsg: break;
case DebugMsg: break;
case UnknownMsg: break;
}
if (pre) {
msg = xconfigStrcat(pre, b, NULL);
} else {
msg = strdup(b);
}
/* call back into the host to print the message */
xconfigPrint(t, msg);
free(b);
free(msg);
if (pre) free(pre);
}
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